The 20Year Old Toddler….

Brooke Greenberg may look like an infant, but she is actually 20 years old. Despite her increasing age, Brooke has remained physically and cognitively similar to a toddler, with an estimated mental age of nine months to one year.
Appearing on Katie Couric’s show with her parents and 17-year-old sister, Brooke, who is from Maryland, is unable to talk, still has her baby teeth and like any infant, travels in a push chair – but doctors have never been able to explain why.

According to Daily Mail (a popular tabloid), Brooke has been examined by some of the most prestigious medical institutions in the U.S., however no formal diagnosis for Brooke’s condition has been given, leading doctors to term her condition Syndrome X.

Dr Eric Schadt, director of the Icahn Institute for Genomics and Multiscale Biology at The Mount Sinai Medical Center in New York, explained that she has ‘no apparent abnormalities in her endocrine system, no gross chromosomal abnormalities, or any of the other disruptions known to occur in humans that can cause developmental issues.’